With liquid ammonia refrigeration, what temperature can the cooling water reach? For example, how to control temperatures at 0 degrees, or minus 5 degrees, or even minus 10 degrees?

2017-02-17 View Original

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With liquid ammonia refrigeration, what temperature can the cooling water reach? For example, how to control temperatures at 0 degrees, or minus 5 degrees, or even minus 10 degrees? Based on the evaporation rate of liquid ammonia?

Reply #2 2017-02-17

It’s definitely impossible to achieve below zero; the water has frozen. Unless salt or ethylene glycol is added to the water to reduce its freezing point. The liquid ammonia level in the ammonia heat exchanger can be controlled by temperature.

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With liquid ammonia refrigeration, what temperature can the cooling water reach? For example, how to control temperatures at 0 degrees, or minus 5 degrees, or even minus 10 degrees?

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